#include<iostream>
const int ArSize=8;
int sum_arr(int arr[], int n);
int main()
{
	using namespace std;
	int cookies[ArSize]={1,2,4,8,16,32,64,128};
	
	int sum=sum_arr(cookies,ArSize);
	cout<<"Total cookies eaten: "<<sum<<"\n";
	return 0;
} 

int sum_arr(int arr[], int n)
{
	int total=0;
	for (int i=0;i<n;i++)
		total=total+arr[i];
	return total;
}
